Build QEMU from source so that SIGHUP-for-ACPI-shutdown patch can be applied (and we can control our QEMU version closer)

Dockerfile

@@ -2,10 +2,75 @@ FROM debian:stretch-slim
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
 		ovmf \
-		qemu-system \
-		qemu-utils \
+#		qemu-system \
+#		qemu-utils \
 	&& rm -rf /var/lib/apt/lists/*
 
+COPY *.patch /qemu-patches/
+
+# https://www.qemu.org/download/#source
+ENV QEMU_VERSION 2.11.0
+
+RUN set -eux; \
+	\
+	savedAptMark="$(apt-mark showmanual)"; \
+	\
+	apt-get update; \
+	apt-get install -y --no-install-recommends \
+		ca-certificates \
+		wget \
+		xz-utils \
+		\
+		patch \
+		\
+		gcc \
+		libc-dev \
+		libglib2.0-dev \
+		libpixman-1-dev \
+		make \
+		pkg-config \
+		python \
+		zlib1g-dev \
+	; \
+	rm -rf /var/lib/apt/lists/*; \
+	\
+	wget -O qemu.tar.xz "https://download.qemu.org/qemu-2.11.0.tar.xz"; \
+# TODO verify signature
+	mkdir /usr/src/qemu; \
+	tar -xvf qemu.tar.xz -C /usr/src/qemu --strip-components=1; \
+	rm qemu.tar.xz; \
+	\
+	cd /usr/src/qemu; \
+	\
+	for p in /qemu-patches/*.patch; do \
+		patch --strip 1 --input "$p"; \
+	done; \
+	rm -rf /qemu-patches; \
+	\
+	./configure --help; \
+	./configure; \
+	make -j "$(nproc)"; \
+	make install; \
+	\
+	cd /; \
+	rm -rf /usr/src/qemu; \
+	\
+	libs="$( \
+		find /usr/local -type f -executable -exec ldd '{}' ';' \
+			| awk '/=>/ { print $(NF-1) }' \
+			| sort -u \
+			| xargs dpkg-query --search \
+			| cut -d: -f1 \
+			| sort -u \
+	)"; \
+	savedAptMark="$savedAptMark $libs"; \
+	\
+	apt-mark auto '.*' > /dev/null; \
+	[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; \
+	apt-get purge -y --auto-remove
+
+STOPSIGNAL SIGHUP
+
 EXPOSE 22
 EXPOSE 5900
 

qemu-signals.patch

@@ -0,0 +1,20 @@
+Origin: https://bugs.launchpad.net/qemu/+bug/1217339/comments/2
+Origin: https://lists.nongnu.org/archive/html/qemu-devel/2017-03/msg03039.html
+
+diff --git a/vl.c b/vl.c
+index 1ad1c04637..9e07fe1dbb 100644
+--- a/vl.c
++++ b/vl.c
+@@ -1898,7 +1898,11 @@ void qemu_system_killed(int signal, pid_t pid)
+     /* Cannot call qemu_system_shutdown_request directly because
+      * we are in a signal handler.
+      */
+-    shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
++    if (signal == SIGHUP) {
++        powerdown_requested = 1;
++    } else {
++        shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
++    }
+     qemu_notify_event();
+ }
+